public void Start()
{
if (HasLoadedAllJobs())
{
textOutPut("ALL JOBS HAVE COMPLETED.");
RamPercent(1);
OSDriver.DONE = true;
return;
}
else
{
loc = 0;
Memleft = 1024;
}
if (CURRJOB >= OSDriver.PCB.GetJobCount())
{
OSDriver.DONE = true;
return;
}
job = OSDriver.PCB.GetJob(CURRJOB);
jobStart = job.DiskAddress;
jobSize = job.jobSize;
jobIBSize = job.InBufferSize;
jobOBSize = job.OutBufferSize;
jobTBSize = job.TmpBufferSize;
dataSize = job.DataSize;
textOutPut("Start: " + jobStart);
textOutPut("Size: " + jobSize);
textOutPut("IP Buffer Size: " + jobIBSize);
textOutPut("OP Buffer Size: " + jobOBSize);
textOutPut("TMP Buffer Size: " + jobTBSize);
textOutPut("\nIs there enough memory left for the next job? " + (Memleft >= ((jobSize * 4) + (jobIBSize * 4))));
textOutPut("Have we reached the end of the job list? " + (CURRJOB < OSDriver.PCB.GetJobCount() + 1));
while (Memleft >= (jobSize * 4) && (CURRJOB < OSDriver.PCB.GetJobCount()))
{
job.MemStart = loc;
int v = jobStart + jobSize;
for (int p = jobStart; p < v; p++)
{
String binaryBits = OSDriver.tools.getBinaryData(p);
textOutPut("Binary bits: " + binaryBits);
string tmps = "";
tmps = binaryBits.Substring(0, 8);
int binaryBits1 = NumericConvert.BinaryToInt(tmps);
textOutPut(binaryBits1);
textOutPut(String.Format("Decimal: {0}\t added at location: {1}", binaryBits1, loc));
OSDriver.MemManager.WriteRamData(loc++, binaryBits1);
tmps = binaryBits.Substring(8, 8);
int binaryBits2 = NumericConvert.BinaryToInt(tmps);
textOutPut(binaryBits2);
textOutPut(String.Format("Decimal: {0}\t added at location: {1}", binaryBits2, loc));
OSDriver.MemManager.WriteRamData(loc++, binaryBits2);
tmps = binaryBits.Substring(16, 8);
int binaryBits3 = NumericConvert.BinaryToInt(tmps);
textOutPut(binaryBits3);
textOutPut(String.Format("Decimal: {0}\t added at location: {1}", binaryBits3, loc));
OSDriver.MemManager.WriteRamData(loc++, binaryBits3);
tmps = binaryBits.Substring(24, 8);
int binaryBits4 = NumericConvert.BinaryToInt(tmps);
textOutPut(binaryBits4);
textOutPut(String.Format("Decimal: {0}\t added at location: {1}", binaryBits4, loc));
OSDriver.MemManager.WriteRamData(loc++, binaryBits4);
Memleft -= 4;
}
textOutPut(String.Format("Data Size: {0} and location is {1}", dataSize, loc));
int z = 0;
int[] tmp = new int[dataSize * 4];
String binaryDataBits;
//Get input buffer from datafile and save it in PCB
while (z < job.DataSize * 4)
{
textOutPut("GETTING JOB DATA...");
binaryDataBits = ToBinaryString(v++);
tmp[z++] = NumericConvert.BinaryToInt(binaryDataBits.Substring(24, 8));
tmp[z++] = NumericConvert.BinaryToInt(binaryDataBits.Substring(16, 8));
tmp[z++] = NumericConvert.BinaryToInt(binaryDataBits.Substring(8, 8));
tmp[z++] = NumericConvert.BinaryToInt(binaryDataBits.Substring(0, 8));
}
job.IPBuffers = tmp;
job.MemEnd = loc;
job.SetStatus(ready);
//Add the job to the ready queue and record the time.
readyQueue.Add(job);
job.EnQueueTime = Environment.TickCount;
textOutPut(String.Format("Added job: {0} at address: {1}-{2}\n", CURRJOB, job.MemStart, job.MemEnd));
if (CURRJOB >= OSDriver.PCB.GetJobCount())
{
OSDriver.DONE = true;
return;
}
CURRJOB++;
textOutPut("Is the current job < total jobs " + (CURRJOB < OSDriver.PCB.GetJobCount()));
textOutPut(String.Format("Current job: {0}\tTotal jobs: {1}", CURRJOB, OSDriver.PCB.GetJobCount()));
if (CURRJOB < OSDriver.PCB.GetJobCount())
{
textOutPut("CURRENT JOB: " + CURRJOB);
job = OSDriver.PCB.GetJob(CURRJOB);
jobStart = job.DiskAddress;
jobSize = job.jobSize;
dataSize = job.DataSize;
jobIBSize = job.InBufferSize;
}
else
{
RamPercent(1);
OSDriver.DONE = true;
}
}
RamPercent(0);
}
